Gastrointestinal System Atlases
El Salvador Atlas of Gastrointestinal Endoscopy This atlas includes images and videos of endoscopic findings. Maintained by Dr. Julio Murra-Saca MD, Chief of the Department of Gastroenterology, Jerusalem Medical Center, San Salvador, El Salvador.
http://laughingsquid.com/the-gastrointestinal-system-represented-as-a-subway-map/